1046 THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1957 



Mr. Prince is a member of the I.R.E., the American Physical Society, 

 the Association for AppHed Solar Energy, the Electrochemical Society 

 and Sigma Xi. 



W. W. RiGROD, B.S. in E.E., Cooper Union Institute of Technology, 

 1934; M.S. in Engineering, Cornell University, 1941; D.E.E., Poly- 

 technic Institute of Brooklyn, 1950; State Electrotechnical Institute, 

 Moscow, U.S.S.R., 1935-39; Westinghouse Electric Corporation, 1941- 

 51; Bell Telephone Laboratories, 1951-. His work has been related 

 principally to the study and development of electron tubes, both the 

 gaseous-discharge and the high-vacuum types. He is a member of the 

 American Physical Society, I.R.E. and Sigma Xi. 



Stephen O. Rice, B.S., Oregon State College, 1929; California In- 

 stitute of Technology, Graduate Studies, 1929-30 and 1934-35; Bell 

 Telephone Laboratories, 1930-. In his first years at the Laboratories, 

 Mr. Rice was concerned with the non-linear circuit theory, with special 

 emphasis on methods of computing modulation products. Since 1935 he 

 has served as a consultant on mathematical problems and in investiga- 

 tions of the telephone transmission theory, including noise theory, and 

 applications of electromagnetic theory. Fellow of the I.R.E. 



Erling D. Sunde, E.E., Technische Hochschule, Darmstadt, Ger- 

 many, 1926; Brooklyn Edison Company, 1927; American Telephone and 

 Telegraph Company, 1927-1934; Bell Telephone Laboratories, 1934-. 

 My. Sunde's work has been centered on theoretical and experimental 

 studies of inductive interference from railway and power systems, 

 lightning protection of the telephone plant, and fundamental transmis- 

 sion studies in connection with the use of pulse modulation systems. 

 Author of Earth Conduction Effects in Transmission Systems, a Bell 

 Laboratories Series book. Member of the A.I.E.E., the American 

 Mathematical Society, and the American Association for the Advance- 

 ment of Science. 



Harold S. Veloric, B.A., University of Pennsylvania, 1951; M.A., 

 1952, Ph.D., 1954, University of Delaware; Bell Telephone Labora- 

 tories, 1954-. Between 1951-4 he was a research fellow concerned with 

 the synthesis and analysis of boron and silicon compounds. Since joining 

 the Laboratories, Mr. Veloric has been concerned with the properties and 

 development of solid state devices. He has been associated with the de- 

 velopment of several classes of silicon diodes, including power rectifiers, 

 voltage-reference and computer diodes. Dr. Veloric is a member of the 

 American Chemical Society and the Electrochemical Society. 



